Investors weigh Fed meeting and debt ceiling concerns, causing fluctuation in Treasury yields.

U.S. Treasury yields fell ahead of the Federal Reserve's next meeting, where a 25 basis point interest rate hike is expected. Investors are also looking for hints about when rate hikes may pause or rate cuts could begin. Inflation remains uncomfortably high, and concerns about higher rates putting pressure on the economy and leading to a downturn have spread among investors. JOLTS job openings figures for March are expected on Tuesday and could provide further insights into the state of the U.S. economy.